Extractors: never without.
Lorenzo "Lollo" Baby 
Often if not always left out is clear from the topic of indoor newbies "AIR TREATMENT" and the topic is favored seeds, electricity, land, basic nutrients, etc. booster.
Well ... I want to debunk this urban legend: the extraction and air circulation are essential! Then: NOTHING RECIRCULATION NOTHING fruiting for a series of consequences due to the limitation of photosynthesis and to a inevitable necrosis leaf apparatus.
I almost always get asked in my Bio-gardening the same questions from customers: too many nutrients? The leaves are arriciano upward and the tips are yellow, fruiting is delayed, I have burns. Too much nitrogen?
Know that in most cases it is not so then ... What advantages port the purchase of a good extractor? I'd rather huge, forget about a good production without extraction.
What can, or more precisely, how many functions have an extractor?
1) Think of the air as if it were a liquid nutrition, like a booster for flowering / fruiting and you're on the right track;
2) The air during the period of light must be constantly extracted placing side by side also a good fan inside the grow box
Advantages:
1) Optimization of photosynthesis (primary function of the plant)
2) The recirculation and extraction optimize the conversion of the carbon in the carbon dioxide co2 air together with the conversion of hydrogen in the water are converted into sugars (organic nutrients for photosynthesis)
3) In simple words: we have molecules of CO2, water molecules and due to their balance and solar energy is converted in the development of the plant more molecules of oxygen, if there is no one party is a block if the co2 is too low, photosynthesis slows down dramatically because the percentages are in imbalance between their and there is no synergy or worse still if the co2 were to be very low the process stops.
4) The recirculation eliminates the danger of mold in the flowering
5) Allows you to optimize the air / moisture 'internal
6) Allows you to connect the fan to a system "AIR COOLED" .. the use of a reflector or cool tube connected to the extractor that cools the air around the bulb eliminating the risk of serious burns and the possibility of giving approach of 50% the bulb to the inflorescences / fruits with a consequent increase of production equal to 20/25 per cent
7) constant oxygenation of the roots (root rot to avoid / necrosis)
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Tags: management growroom , guides , ventilation
